Home / 9,209.40-12,703.55-6,517.59

Finding the Fourth Proportional to 9,209.40, 12,703.55 and 6,517.59

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Solution

The fourth proportional to 9,209.40, 12,703.55 and 6,517.59 is: 8,990.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,209.40 : 12,703.55 = 6,517.59 : x
  2. Step 2: Convert to fraction form
    9,209.40/12,703.55 = 6,517.59/x
  3. Step 3: Cross multiply
    9,209.40x = 12,703.55 × 6,517.59
  4. Step 4: Simplify right side
    9,209.40x = 82,796,497.86
  5. Step 5: Solve for x
    x = 82,796,497.86/9,209.40
  6. Step 6: Final answer
    x = 8,990.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.